Clay-working machinery



Oct. 23, 1923.

R. H. MCELROY CLAY WORKING MACHINERY Filed July 13. 1922 M m: N

2 Sheets-Sheet 1 2 Sheets-Sheet 2 R. H. M ELROY CLAY WORKING MACHINERY Filed July 13 ij g/g z' 4 II4L 1- -J Oct. 23 1923.

Patented Oct. 23, lg23.

Roy H. MQELR Y, or Darren; cnro, asst THE BOHMANN rnon cnusnrrs. J

ROY H- MCFELFROY, mementos WORKS G040? OHIO, QRATION o'rQMAssA 7 cLAY-Wonmne MACHINERY.

. Application filed 3111yf13, 1922. 'seriaino. swresa To all whom may concern. r Be-it known that LROY H. MoELRoY, a

citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented certainnew and useful Improvements in Clay-Working 'Machinery, of which the following is a specificati0n,-ref erence being had therein to the accompanying drawlng.

My invention relates to clay working ma ch nery and'ln particular t a IIlLClllIlG ltOl It is the ob'eot of my invention to provide a machine forthe purpose of extruding plastic materialafter it hasbeen thoroughly mixed for extrusion through a die f predee termined size. 1 j Such a machine is subjected to very great 1 strain resulting in the Warping of thefmachine, the movement of its'parts'out of alignment, heavy wearupon the bearings of the driving mechanism, and 1 difliculty in maintaining the proper alignment of the power drives. -A machine of this character works unde conditionswhere there. is a large amount of flying dust and very considerable moisture leading to the destruction of belts and the like mechanism,

I: V Furthermore, sucha machine is-installed in clay working plants Where skilledmechanics for handling machinery f thischaracter and installing it are rarely available, making it necessary-for the manufacturer of such machineryto furnish suitable 1nechanics forthe'installation of it.

It is the object ofmy invention to provide a machineall the parts of which will be'mounted upon a single base casting, including the power unit. 1 7 It is the furtherobject to provide such a machine-thatishall'be self contained, may be completely built including the powerunit at the factory and maybe shipped to the It is thus my object to eliminateall mechanicalconnections save the tightening .of the bolts and nuts,constitu ting a part ofthe cement base, and attachingwires to the e lec-. tric motor which is found on the machine ofmyinvention. p i.

It is a further object'of my invention to provide a dust proofdrive, thus eliminating as bolt and the. like and eliminating arecontact withthe' driving mechanism of for- V e gn materlal, moisture, and similaragencies,

It is a further objectofmy invention to 5 provide a power unit and a powerdrive so disposed and arranged upon the slngle base castlng that the stresses and'strains set up will be equalized over the casting with-a minimum of'wear on the bearings;

' It is an additional object of my'invention to provide this single casting of arched or hollow construction with reinforcing ribs.

vIt is a still further-object of the inven tion'to provide a means of ,oilingthethrust bearing to utilize all of theoil in the hous ing for the bearing; withoutpermitting' oil to'escape through the junction pointbetween the casing and the shaft. 7 v i R f It is my object to 'providega means of oil-. ing thebearingWhich Will-use the oil-rather than-waste. it as has been heretofore-the dif ficulty where it has been necessarytolrun the.

bearing inoil with the conse'quent loss-ofit alongthe'shaft, j

Referringto the drawings: Fig. 1 is a plan view. of mechanism on, the single base casting;

the assembled V QFig. '2 is a section on the line.g yl of Fig.1, showing the arrangementof the out board casting and motor support;

I Fig. 3 is'a section throughthe base caste ing on the line 3-3 of Fig. 1'; l 1 Fig. 4 is a section on the line.

Fig.1; 7

- Fig. 6 is a'section through the casing; and

partially through the thrust bearing.

Referring to the drawings-indetailz' I The base casting consists of a semicircular portion 1 known as-the extrusion casting portion. Adjacent to this portion are the bearingsupport walls 2 and13, and upon the top of these walls is mounted the: support for the "marine thrust bearing 4. A trough 5 isformed bythe bottom 6', wall 3 and wall 7' in which the main gearing rotates. 8 is a supporting bearing for the auger shaft which carries the marine hearing. The portion 9 constitutes the. connecting member for the out boardbearing" coljumn' 10 upon which the out board bearing 11 is'rnounted. It: also. connects with the niotorbase portion ofthe ,cast'ingi as 'at l2 I casting, thus forming a structure.

which is provided with raised portions 18 upon which the feet of the motor'rest. The motor 14 rests upon this portion of the mechanism.

Throughout the .machine runs a central reinforcing"ri b .15. A number of t verse ribs lfiare provided, as well as a number of parallel longitudinal ribs 17. These ribs are generally disposed at right angles to one another, and form a. checker board structure in the base of the hollow The motor 14 has mounted on its shaft 18 a pinion 19. This pinion drives a chain belt .20 which in turn er age's'with the gear 21 mounted on, a shaft 22 which is supported at its outer end in the o= board cast' g bearing 11. The chain-2O and the 19 and 21 are enclosed within a sealed cont: er 23-which contains oil but will not permit exit ofthe oil and is also dust proof.

It is thus possible to prevent the dust moisture in the operating room from coming in contact with the chainor the gears and injuring them. l

7 The line of power and the auger shaft to be hereinafter 'describedmay be bro'lr'en'by the clutch 24 operated by the clutch oper ating mechanism consisting of theftoggles 25 and 26 working on the sleeve This clutch may be operated by a lover or any other desired means. The shaft 28 connecting with the other side of this clutch is mounted in the bearing 29' at one side, and at the other side in the'bea'ring 30. Upon this shaft is mounted a pinion 31 which meshes with the master gear 32 of the auger shaft 33'. This auger shaft is supported at one end in the bearing 8 and at the other end in the bearing 34. Also mounted on the auger shaft is a driving gear for the impeller 35 which meshes with a similar gear 36 on the impeller shaft 37. This impeller shaft is journalled at 38, 39 and 40 upon the base casting and operates the impeller 41. This impeller is located within the impeller housing 42 and is seen partially through the hopper 48 into which the mixture is fed to be worked upon by the auger 44 also seen through the opening of the hopper. The auger 44 works in a concrete casing formed by the portion designated 1 of the base'casting and the cap member 45 which is retained by the bolts '46 upon the base casting.

It will be understood that'suitab'le liners are provided within this casingas set forth and described in Patent No. 1,450,506 issued jointly to Joseph D; Cite, Albert G. Lan= genkamp and myself.

On the end of the extrusion casting member is detachably mounted a die 47 which regulates the exactdimensions of theextruded plastic material.

very rigid the r At the other end of the auger shaft is a thrust bearing contained in thecasing 48 and seen in section in Fig.6.

It will be understood that both a marine thrust bearing and a thrust bearing of the character shown in Fig. 6 are provided for alternate or joint use in taking up the thrust on the auger shaft and the auger.

As described in said Patent 1,450,506, the thrust bearing in Fig. 6 consists of a casing 48 in which wor s an adjusting screw 49 with a head 50. This screw makes contact at 51- with an intermediate plate 52 which is telescoped partially within the convex thrust member 53, as indicated at 54, by having ashouldcr or ridge 54 inserted in a groove 55 in 53.

The concave member which takes the thrust as to 56 is mounted in the shaft of the auger 83 by a pin 57.

7 I improve the construction shown in the said Patent No. 1,450,506 by providing a novel means of oiling a bearing of this type, consisting of mounting; achain 58 in a groove 59 on the surface of 56 closely adjacent'to the point of unit between 56 and 53, so that the oil will be conveyed to the contact surface between 53 and56,'as at 60, lubricating this surface. I

The casing 48 forms an oil tank into which the chain 58 dips, thus'conveying the oil upwardly to "the point desired where the oil runs along the surface of the bearing at the same time enablingme to use a small quantity of oil and to prevent the escape of the oil which inevitably occurred when the oil was heretofore brought to a level sufficient for the bearing to turn in it, because at that point, if the workmen were careless in'supplying the oil, the oil would escape through the opening Gladjacent to the shaft 33. V v

It will be understood that I do not desire to limit myself to-the details of my invention, but comprehend within its scope such modifications as maybe necessary to carry my invention into practice in other forms than I have shown ,it in the drawings and described it in the specifications herein.

Having *thus described my invention, what ll desire to claim in Letters Patent is as follows 1. The combination with a motor, of shaft, belting connecting the motor and shaft, a pinion on said shaft, a second shaft, a pinion on said shaft, a second shaft,

a gear on the second shaft 'meshing with said pinion, an extrusion'auger carried by the second shaft, an impeller positioned laterally of the-auger and adjacent thereto, a third shaft carrying said impeller, and gearing connecting the second and third shafts.

3. The combination with a motor, of a shaft, belting connecting the vmotor and shaft, a pinion on said shaft,,a secondshaft, V

a gear on the second shaftm'eshing-with said pinion, an extrusion auger carriedby the second shaft, an impeller positioned laterally of the auger andv adjacent thereto, means to drive the impeller from the seca gear on the second shaft meshing with said pinion, an extrusion auger carried by the second shaft, an impeller positioned shaft, belting connecting the motor shaft,"a pinion on said shaft, a second shaft,

laterally of the auger and'adjacent; thereto,

a third shaft carrying said impeller, and i gearing connecting the second and third f shafts, said first shaft comprising a pair of alined sections, and a clutch member for connecting and disconnecting said sections; 5. The combination with a motor, of a and a gear on the second shaft meshing with said pinion, an extrusion auger carried by r the second shaft, aniimpeller; positioned laterally of the auger and adj acent ther'eto a'thirdshaft carrying said impeller, gearing connecting the second and thirdshafts, I one of sand bearing members being'provided 'Wlth a circumferential groove, anda movable oilingdevice resting in said groove and depending adjacent the bottom of a reservoir. 7 P r In testimony whereof I affix my signature.

'ROY McELR-OY. 

